28256505

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{18289}}^1$

素因数の和:18400

約数の個数: 16

約数和(自身を含む): 45651840

約数和(自身を除く): 17395335

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 18289, 54867, 91445, 274335, 1883767, 5651301, 9418835, 28256505]

約数ペア:

[(1, 28256505), (3, 9418835), (5, 5651301), (15, 1883767), (103, 274335), (309, 91445), (515, 54867), (1545, 18289)]